Yazar "Korkmaz, H. Husnu" seçeneğine göre listele

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    Predicting the flexural behaviour of reinforced concrete and lightweight concrete beams by ANN
    (NATL INST SCIENCE COMMUNICATION-NISCAIR, 2012) Kamanli, Mehmet; Kaltakci, M. Yasar; Bahadir, Fatih; Balik, Fatih S.; Korkmaz, H. Husnu; Donduren, M. Sami; Cogurcu, M. Tolga
    In this study, artificial neural network (ANN) method is used to predict the deflection values of beams and compared with the experimental results of a testing series. For this purpose six reinforced concrete beams with constant rectangular cross-section are prepared and tested under pure bending. The concrete of the test specimens is casted using the lightweight aggregates obtained from volcanic sediments. The lightweight concrete has some advantages comparing the traditional concrete, such as less self weight, less earthquake forces due to decreased mass, good sound and thermal insulation. The use of lightweight concrete in the construction industry is popular due to various advantages. The neural network procedure is applied to determine or predict the deflection values of 1/1 scaled model beams. The analytical results are compared with the test results and further predictions, including different mix designs can be possible at the end of the study. As a result, while the statistical values RMSE, R-2 and MAE from training in ANN model are found as 0.266, 99.2% and 0.216, respectively, these values are found in testing as 0.370, 96.47% and 0.419, respectively.
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    Sudden Complete Collapse of Zumrut Apartment Building and the Causes
    (ASCE-AMER SOC CIVIL ENGINEERS, 2013) Kaltakci, M. Yasar; Kamanli, Mehmet; Ozturk, Murat; Arslan, M. Hakan; Korkmaz, H. Husnu
    In recent years, buildings and structures in Turkey have frequently failed or suddenly sustained damage because of their own weight or other loads. The most dramatic failure was the Zumrut Apartment Building disaster: a 9-story RC building in Konya that collapsed on February 2, 2004, leaving 92 people dead. This study will investigate the cause of the building damage and failure. The significant mistakes made during the design and construction of the building will also be considered. This study was divided into three sections: site investigation, analytical study, and experimental study. The evaluation of the building failure relating to the vertical load-bearing members will be presented using observations from the site investigations, the test results obtained from specimens taken from the failed building, and the findings of an analytical study involving modeling the building using the finite-element method.